Measurements of total reactive nitrogen during the Airborne Arctic Stratospheric Expedition

Details Measurements of total reactive nitrogen during the Airborne Arctic Stratospheric Expedition Measurements of total reactive nitrogen during the Airborne Arctic Stratospheric Expedition

Mar 1990

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1990georl..17..485k&link_type=abstract

Geophysical Research Letters, Supplement (ISSN 0094-8276), vol. 17, March 1990, p. 485-488.

Computer Science

Sound

51

Arctic Regions, Atmospheric Composition, Atmospheric Sounding, Nitrogen Oxides, Stratosphere, Abundance, Annual Variations, Atmospheric Chemistry, Winter

Scientific paper

Composite distributions of measured total reactive nitrogen NO(y), from the NASA ER-2 during the Airborne Arctic Stratospheric Expedition are presented. The observed features of these distributions are discussed in terms of the controlling dynamical, chemical and microphysical processes. In the latitudinal profile from 58 deg N to within about 4 deg poleward of the polar vortex boundary, NO(y) conforms closely to predictions of NO(y) based on N2O measurements. Poleward of 5 deg of latitude within the boundary, the average NO(y) decreases sharply and is significantly lower than that predicted from N2O. This feature is consistent with loss of NO(y) through sedimentation of particles containing NO(y) in polar stratospheric clouds.

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